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All Journal Indonesian Journal of Geography Socia : Jurnal Ilmu-Ilmu Sosial Tekno - Pedagogi : Jurnal Teknologi Pendidikan Media Komunikasi Geografi Jurnal Kawistara : Jurnal Ilmiah Sosial dan Humaniora Majalah Geografi Indonesia Gadjah Mada International Journal of Business Jurnal Populasi Forum Geografi Jurnal Biometrika dan Kependudukan (Journal of Biometrics and Population) JPG (Jurnal Pendidikan Geografi) Vidya Karya Jurnal Geografi Jurnal Geografi, Edukasi dan Lingkungan Politik Indonesia: Indonesian Political Science Review Jurnal Ilmiah Mandala Education (JIME) Jurnal Perencanaan Pembangunan JIHAD : Jurnal Ilmu Hukum dan Administrasi Jurnal Kependudukan Indonesia Salus Cultura: Jurnal Pembangunan Manusia dan Kebudayaan GEOGRAPHIA: Jurnal Pendidikan dan Penelitian Geografi Jurnal Multidisiplin Madani (MUDIMA) Jurnal Pengabdian Mandiri Berita Kedokteran Masyarakat Prosiding University Research Colloquium ELPOSYS: Jurnal Sistem Kelistrikan Asian Journal of Social and Humanities Jurnal Pengabdian Kepada Masyarakat Jurnal Kawistara
Sukamdi
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Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Rancang Bangun Mesin Sangrai Sampel Biji Kopi Elektrik Kapasitas 250 Gram Heri Sungkowo; Rahman Azis Prasojo; Dinda Ayu Amalia; Rahmad Dwi Pramudya; Muhammad Fahmi Hakim; Bakti Indra Kurniawan; Sukamdi
Elposys: Jurnal Sistem Kelistrikan Vol. 10 No. 3 (2023): ELPOSYS vol. 10 no. 3 (2023)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v10i3.3942

Abstract

Coffee is one of the beverages with a distinct flavor profile. Coffee production continues to grow in response to community demands. A wide variety of coffee flavors have been developed, necessitating an effective coffee processing method, such as roasting. While many coffee production processes employ roasting machines with high capacities, smaller industries may incur losses when using such machines due to their production needs, which involve creating new coffee flavor samples. To address these challenges, a solution is proposed: the creation of a drum-based coffee bean sample roasting machine that utilizes the convection method. The machine manufacturing process involves calculating the drum capacity, heater specifications, motor rotation, and air flow. A 2000 Watt heater is chosen, accompanied by a maximum drum capacity of 250 grams. The driving motor is a 12 V DC motor. The combined power of the motor components totals 1520 Watts, and the overall heating capacity can achieve temperatures of up to 300ºC. Performance testing of the roasting machine is conducted under conditions where all components are functioning correctly. The final roasting results exhibit even distribution, with a preheating temperature range of 190-200ºC for approximately 15 minutes roasting time.
Kinerja Inverter 500 W untuk PLTS Skala Kecil Slamet Nurhadi; Muhammad Fahmi Hakim; Ferdian Ronilaya; Sukamdi; Rahmania Putri Yulissa
Elposys: Jurnal Sistem Kelistrikan Vol. 11 No. 1 (2024): ELPOSYS vol. 11 no. 1 (2024)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v11i1.5015

Abstract

At Electrical Engineering Department of Politeknik Negeri Malang, there is an EBT learning module in the form of solar panel with small capacity, namely 80 Watts. The only load that can be supplied is DC load because there isn’t installed inverter. Therefore, it is necessary to determine the inverter specifications to be installed in small-scale solar system. This research aims to determine the specifications and test the performance of a 500 W inverter integrated with a 50 Wp solar system. Also analyze power quality parameters and efficiency when connected to various load. The test method is no-load and load testing with the parameters measured including current, voltage, power, frequency and THD. Analysis was also carried out on the correlation between efficiency and loading and inverter pins with THDV and THDI. In the no-load test, the inverter output voltage waveform was obtained as a pure sine wave with a frequency of 50.10 Hz. In testing the LED and LHE loads, it was found that the inverter was good for use when the load was 50-80% of its capacity. The lowest THDV value is at a Pin value of 26 W, namely a THDV value of 0.009%. The highest THDV on the Pin is 130 W with THDV value of 1.9%. The lowest THDI value is at Pin 9.75 W, namely 27.6%. The highest THDI value on the 130 W Pin is 80.9%. The THD limit is still within the IEEE standard limit, namely 5% - 10%.
Peningkatan Keandalan Berbasis Nilai Energy Not Supplied (ENS) Pada Penyulang Banyu Biru Slamet Nurhadi; Mochammad Mieftah; Heri Sungkowo; Sukamdi
Elposys: Jurnal Sistem Kelistrikan Vol. 11 No. 2 (2024): ELPOSYS vol. 11 no. 2 (2024)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v11i2.5157

Abstract

The reliability of the Banyu Biru feeder at PT. PLN (Persero) ULP Gondang Wetan is critical due to frequent disturbances causing significant energy losses and impacting SAIDI and SAIFI metrics. This study aims to enhance reliability by reducing ENS (Energy Not Served) values through strategic solutions. Data from March to August 2022 revealed 27 disturbances, comprising 6 permanent and 21 temporary interruptions. Initial calculations showed an ENS value of 20,509.84 kWh, a SAIDI of 0.24 hours/customer, and a SAIFI of 0.64 times/customer. The study proposed two scenarios: relocating the LBSM and adding 5 FCOs, and additionally installing a recloser in the second scenario. Post-implementation, ENS values decreased to 7,489.31 kWh, with SAIDI and SAIFI values improving to 0.08 hours/customer and 0.13 times/customer, respectively. These results highlight significant reductions in energy losses and improvements in network reliability, aligning with SPLN 68-2: 1986 standards. This research provides actionable insights for PT. PLN to enhance distribution network reliability and customer satisfaction.
Tapping Into Creativity: Crafting Engaging Math Lessons for Middle Schoolers with Macromedia Flash Sukamdi, Sukamdi; Lepik, Aira; Denkovski, Viktor
Tekno - Pedagogi : Jurnal Teknologi Pendidikan Vol. 13 No. 1 (2023): Tekno-Pedagogi
Publisher : Program Magister Teknologi Pendidikan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/teknopedagogi.v13i1.36396

Abstract

The aim of the research is to design media based on Realistic Mathematics Education (RME) spatial material; producing RME media with Macromedia Flash for class IX educators and students building materials; knowing the responses of educators and students after using the media; find out the results of learning about curved sided space figures. RME media development refers to the model of William W. Lee and Diana L. Owens by going through four stages out of five existing stages, namely: analysis; product design; development; implementation; and evaluation. In this research, the evaluation stage was not carried out. The results of expert validation obtained an average score of 88.8%, individual trials an average of 81.33%, small group trials an average of 80.89%, educators' responses to the media an average of 87.33%, and responses students average 83.73%. The use of RME media in learning has an impact on learning outcomes, where the average learning outcome for the experimental class is 81.65 while the average learning outcome for the control class is 78.39. The differences in learning outcomes show that RME media is effective when used in classroom learning.Explore a dynamic approach to math education as students delve into real-world scenarios, navigating building spaces with interactive Macromedia Flash tools. This innovative learning media sparks curiosity and deepens understanding, fostering a practical grasp of mathematics concepts for middle school learners.
DIPERLUKAN PENDEKATAN KEBIJAKAN ADAPTIF UNTUK PENGUATAN MODAL UMKM DI KABUPATEN SLEMAN Suci Iriani Sinuraya; Muhadjir Darwin; Yeremias T Keban; Sukamdi Sukamdi
Jurnal Kawistara Vol 8, No 2 (2018)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/kawistara.33344

Abstract

This paper examines implementation of micro credit policies of non-bankable Small Medium Enterpries (SME’s) in Sleman Regency in 1999-2000. It explores the impact of dynamic policy changing on rates, collateral, and legal aspects as the requirements to access micro credit program. This study employed a qualitative case study, to describe backgrounds, effectiveness, and policy impacts. The data collecting methods included interviews, obeservations, and focus group discussion (FGD). The participants have been set up. Two category of respondent: decision makers and street-level bureaucrats and (candidate) beneficiary program. The research was conducted in October 2016–December 2017. The results show that policy changing on rate, collateral and legality created impacts on the SME’s interest in accessing the credit. The participants of non-bankable SMEs showed that their interest decreased when there were further requirement to attach credit collateral and legal aspects. Therefore, the bankable SMEs become the groups which leverage the micro credit program. On the contrary, the program did not work effectively to entrepreneurs, the non bankable SMEs as the prime targetted group in Sleman. Meanwhile, the appearence of cooperative as an executing body, to which the nonbankable SMSEs,looking for capital. So, the capital from UPT PDPM should through two steps to to reach the non bankable SMEs. The Recommendation is Sleman Regency using adaptive policy to show their affirmation to non bankable SME’s facing the dynamic situation nowadays.
ANALYSIS OF THE DEVELOPMENT OF REGIONAL SOCIO-ECONOMIC CONDITIONS ON THE AGING POPULATION IN ACEH PROVINCE Al Azizah, Rohil; Mulyani, Wiwik Puji; Sukamdi, Sukamdi
Jurnal Biometrika dan Kependudukan Vol. 13 No. 2 (2024): JURNAL BIOMETRIKA DAN KEPENDUDUKAN
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jbk.v13i2.2024.144-152

Abstract

Socio-economic developments in Aceh Province have had a real impact which is reflected in the reduction in death and birth rates as well as an increase in life expectancy, causing changes in the composition of the population aged 60 years and over to increase. However, the developments that have occurred are not evenly distributed throughout the region, it is crucial to be aware of the concept of "being not ready to get old" that will arise in Aceh Province. This study analyzes the socio-economic development of regions with population aging in Aceh Province. The study was conducted with a quantitative approach. Data collection using documentation. Data analysis using descriptive analysis and modification of the Klassen typology. The results of the study showed that Aceh Province in 2020 was in the early aging stage (Mid-Aged) because the percentage of elderly people was more than 7%. It is estimated that in the next 25 years in 2035 Nagan Raya, South Aceh, and West Aceh will be in the high aging category (Super-Aged) or more than 14% and the results of the Klassen typology analysis using socio-economic indicators on population aging show that the development of the 23 districts/cities in Aceh Province is not only in areas that are high growth and high income (quadrant I), several districts/cities are in the category of low growth and low income (quadrant III)  where socio-economic development is low but have entered the early aging stage.
Rancang Bangun Miniatur Plant Pusat Simulator Pompa Air Kotor Menggunakan Panel Kontrol Relay Kontaktor Susilo; Sukamdi; Agus Andrianto; Heri Sungkowo; Dimas Eriyanto; Milzam Brillian Santana
Elposys: Jurnal Sistem Kelistrikan Vol. 11 No. 3 (2024): ELPOSYS vol. 11 no. 3 (2024)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v11i3.6252

Abstract

Water pumps play an important role in the management of wastewater, particularly in maintaining environmental cleanliness and health. This research aims to design and create a miniature plant simulator for wastewater pumps using a relay contactor control panel. This miniature plant is designed to simulate the operation of the wastewater pump system automatically, replacing the often inefficient manual methods. The research process begins by determining the main components needed, such as a three-phase induction motor, contactors, thermal overload relays, and related sensors. Subsequently, the design and construction of the simulator and its control panel are carried out. Implementation includes testing the functionality of each component and the integrity of the overall system, including individual component testing and testing under system failure conditions. The research results show that the miniature plant simulator built functions well as expected. The automatic control system using relay contactors has proven effective in operating the water pump efficiently and safely. This miniature plant can be used not only as a learning tool but also as a prototype for developing larger and more complex wastewater pump control systems
Moderate Replacement Fertility: Independence Dimension Variables Of Yogyakarta Special Region, Indonesia In 2023 Aryati, Seri; Sukamdi; Umi Listyaningsih
Jurnal Geografi, Edukasi dan Lingkungan (JGEL) Vol. 9 No. 1 (2025): Edisi Bulan Januari
Publisher : Pendidikan Geografi Universitas Muhammadiyah Prof. Dr. Hamka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/jgel.v9i1.16945

Abstract

Studi ini menganalisis kondisi sosial ekonomi dan digital di seluruh Daerah Istimewa Yogyakarta, fokus pada kesenjangan antara daerah perkotaan dan pedesaan. Penelitian ini bertujuan untuk menganalisis kesenjangan sosial ekonomi dan digital antara daerah perkotaan dan pedesaan di Daerah Istimewa Yogyakarta. Fokusnya adalah memahami variabel kunci seperti pendapatan, kepemilikan aset, kondisi perumahan, akses internet, dan tingkat putus sekolah untuk merekomendasikan intervensi kebijakan yang terarah. Penelitian ini menggunakan desain penelitian deskriptif dengan data sekunder dari Pengumpulan dan Pemutakhiran Data Keluarga 2023 oleh BKKBN. Analisis dilakukan dengan statistik deskriptif untuk mengidentifikasi pola dan tren, dengan hasil disajikan secara visual melalui grafik dan diagram untuk pemahaman yang komprehensif. Pembersihan dan pemeriksaan konsistensi data dilakukan untuk memastikan integritas data sebelum analisis. Metodologi ini memberikan wawasan tentang variabel dimensi kemandirian yang membentuk dinamika sosial ekonomi dan digital di Yogyakarta. Hasil penelitian mengungkapkan bahwa daerah perkotaan seperti Bantul dan Sleman secara konsisten melaporkan tingkat stabilitas ekonomi yang lebih tinggi, kondisi perumahan yang lebih baik, dan akses yang lebih besar ke media digital, sementara daerah pedesaan, termasuk Kulon Progo dan Gunung Kidul, menghadapi tantangan di daerah ini. Kesenjangan ini menyoroti perlunya intervensi kebijakan yang ditargetkan untuk meningkatkan infrastruktur digital, peluang ekonomi, dan layanan publik di daerah pedesaan.
Bibliometric Analysis of Demographic Research Related to Fertility Using VOSviewer Aryati, Seri; Sukamdi, Sukamdi; Listyaningsih, Umi
Populasi Vol 33, No 1 (2025)
Publisher : Center for Populatioan and Policy Studies Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jp.105893

Abstract

Fertility is a critical aspect of demographic and health studies, directly influencing population growth and public health. This study employs a bibliometric approach to analyze fertility research from 2000 to 2020, utilizing VOSviewer software to visualize the relationships between key topics in the field. Through an extensive analysis of scientific literature from the Scopus database, the study identifies key research themes, such as low fertility, health surveys, reproductive technology, and the impact of the COVID-19 pandemic. The findings reveal that health surveys have consistently been a central focus in fertility research, providing essential data on fertility trends and their implications. Additionally, the emergence of reproductive technologies, such as In Vitro Fertilization (IVF), has been instrumental in addressing infertility, thus influencing fertility decisions globally. The study also highlights how the COVID-19 pandemic has shifted fertility behaviours, with many couples delaying childbearing due to economic and health uncertainties. The interconnectedness of topics like parenthood, fertility intentions, and socio-economic factors underscores the importance of a multidisciplinary approach to fertility research. This analysis offers valuable insights for policymakers and researchers in developing strategies to address future demographic challenges and fertility-related issues. 
Fertilitas di Kabupaten Sleman Yogyakarta Tahun 2023: Demografi, Sosial dan Ekonomi Aryati, Seri; Sukamdi, Sukamdi; Listyaningsih, Umi
GEOGRAPHIA : Jurnal Pendidikan dan Penelitian Geografi Vol. 6 No. 1 (2025): Juni
Publisher : Jurusan Pendidikan Geografi Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/gjppg.v6i1.10341

Abstract

This paper examines fertility in Sleman Regency, Yogyakarta, with a focus on socio-demographic and economic factors. Sleman, a region of strategic significance within the Special Region of Yogyakarta, exhibits unique demographic characteristics that warrant further analysis, particularly in relation to fertility rates. The study highlights the impact of factors such as age at first marriage, ideal number of children, live births, education, employment, contraceptive use, and reasons for not using family planning. Utilizing secondary data from the 2023 Family Survey and Update conducted by BKKBN, the study finds that most residents prefer smaller families, with two children considered ideal. This paper also emphasizes the crucial role of access to healthcare services in shaping fertility patterns. The findings provide valuable insights into local demographic dynamics and offer guidance for policy development aimed at managing population growth and promoting sustainable development.
Co-Authors Abdur Rofi Ade Ermasari Agus Andrianto Agus Heruanto Hadna Agus Heruanto Hadna Agus Joko Pitoyo Al Azizah, Rohil Alfana, Muhammad Arif Fahrudin Alfana, Muhammad Arif Fahrudin Alia Fajarwati ANWAR, DEWI FATIMAH Armansyah Armansyah Aryati, Seri Awan Setiawan Bakti Indra Kurniawan C. Wiharya Catur Sugiyanto Choirul Amin Choirul Amin Denkovski, Viktor Dewi H. Susilastuti Dimas Eriyanto Dinda Ayu Amalia Djokosantoso Moeljono, Djokosantoso Dyah Rahmawati Hizbaron Dyah Widyastuti Faturochman Faturochman Fransisca Yuli Astuti Gunawan Wibisono Helly Prajitno Soetjipto, Helly Prajitno Idris Ihwanudin Imron Ridzki Indra Bastian Isnaeni, MH. Izzatul Arifah Jenri Panjaitan Joenoes, Kartini Sally Hb Josaphat Tetuko SriSumantyo Joto, Ruwah L. Hakim Laili Rahayuwati Lepik, Aira Mas'oed, Mochtar Milzam Brillian Santana Mochammad Mieftah Muhadjir Darwin Muhadjir Darwin Muhadjir Darwin Muhadjir Darwin Muhajir Darwin Muhajir Darwin Muhajir Darwin Muhajir Darwin, Muhajir Muhammad Fahmi Hakim Mulyani, Wiwik Puji Muntiyah Muntiyah Mustafa Elnagi Elsamani Hassan Nindya Riana Sari Norma Yuni Kartika Norma Yuni Kartika Norma Yuni Kartika Norma Yuni Kartika Norma Yuni Kartika, Norma Yuni Novfowan, Anang Dasa Nuraini Nuraini Pinta Rachmadani Putri, Ratih Fitria R. Rijanta Rahmad Dwi Pramudya Rahman Azis Prasojo Rahmania Putri Yulissa Reni Pebrianti Rika Harini Rina Herartri Rindang Ekawati Risky Primastuti Ronilaya, Ferdian S. Djulihenanto S.L. Hermawan Salman Al Farisi, Salman Seri Aryati Seri Aryati Setiadi Setiadi Siswanto Agus Wilopo Slamet Nurhadi Sofian Effendi Sonyaruri Satiti Ruri Suci Iriani Sinuraya Sungkowo, Heri Susi Eja Yuarsi Susilo Sutjipto, Rachmat Tukiran Tukiran Umi Listyaningsih Umi Listyaningsih Wini Tamtiari Yeremias T Keban Yuni Hastuti